Error message testing fix

The testing of error messages have been implemented wrongly a few times.
This is an attempt to fix it.

For example, some of these test should have failed with the new code.
The reason they are not failling with the new string is the fact they
were not being tested beforehand.

3 files changed, 11 insertions, 5 deletions

diff --git a/activerecord/test/cases/enum_test.rb b/activerecord/test/cases/enum_test.rb
index e70d492efd..3b7bbcf47a 100644
--- a/activerecord/test/cases/enum_test.rb
+++ b/activerecord/test/cases/enum_test.rb
@@ -229,9 +229,10 @@ class EnumTest < ActiveRecord::TestCase
     ]
 
     conflicts.each_with_index do |name, i|
-      assert_raises(ArgumentError, "enum name `#{name}` should not be allowed") do
+      e = assert_raises(ArgumentError) do
         klass.class_eval { enum name => ["value_#{i}"] }
       end
+      assert_match(/You tried to define an enum named \"#{name}\" on the model/, e.message)
     end
   end
 
@@ -251,9 +252,10 @@ class EnumTest < ActiveRecord::TestCase
     ]
 
     conflicts.each_with_index do |value, i|
-      assert_raises(ArgumentError, "enum value `#{value}` should not be allowed") do
+      e = assert_raises(ArgumentError, "enum value `#{value}` should not be allowed") do
         klass.class_eval { enum "status_#{i}" => [value] }
       end
+      assert_match(/You tried to define an enum named .* on the model/, e.message)
     end
   end
 
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 5f9fd5d527..3b73685a2c 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -508,12 +508,14 @@ class MigrationTest < ActiveRecord::TestCase
   if current_adapter?(:MysqlAdapter, :Mysql2Adapter, :PostgreSQLAdapter)
     def test_out_of_range_limit_should_raise
       Person.connection.drop_table :test_limits rescue nil
-      assert_raise(ActiveRecord::ActiveRecordError, "integer limit didn't raise") do
+      e = assert_raise(ActiveRecord::ActiveRecordError, "integer limit didn't raise") do
         Person.connection.create_table :test_integer_limits, :force => true do |t|
           t.column :bigone, :integer, :limit => 10
         end
       end
 
+      assert_match(/No integer type has byte size 10/, e.message)
+
       unless current_adapter?(:PostgreSQLAdapter)
         assert_raise(ActiveRecord::ActiveRecordError, "text limit didn't raise") do
           Person.connection.create_table :test_text_limits, :force => true do |t|
diff --git a/activerecord/test/cases/scoping/named_scoping_test.rb b/activerecord/test/cases/scoping/named_scoping_test.rb
index 8cd94ebcc2..e4cc533517 100644
--- a/activerecord/test/cases/scoping/named_scoping_test.rb
+++ b/activerecord/test/cases/scoping/named_scoping_test.rb
@@ -317,13 +317,15 @@ class NamedScopingTest < ActiveRecord::TestCase
     ]
 
     conflicts.each do |name|
-      assert_raises(ArgumentError, "scope `#{name}` should not be allowed") do
+      e = assert_raises(ArgumentError, "scope `#{name}` should not be allowed") do
         klass.class_eval { scope name, ->{ where(approved: true) } }
       end
+      assert_match(/You tried to define a scope named \"#{name}\" on the model/, e.message)
 
-      assert_raises(ArgumentError, "scope `#{name}` should not be allowed") do
+      e = assert_raises(ArgumentError, "scope `#{name}` should not be allowed") do
         subklass.class_eval { scope name, ->{ where(approved: true) } }
       end
+      assert_match(/You tried to define a scope named \"#{name}\" on the model/, e.message)
     end
 
     non_conflicts.each do |name|